to invalidate
Regular verb: invalidate - invalidated- invalidated

Indicative 	
Present 	Present continuous 	Preterite 	Preterite continuous 	
 don't I invalidate?
don't you invalidate?
doesn't he invalidate?
don't we invalidate?
don't you invalidate?
don't they invalidate? 	amI not invalidating?
aren't you invalidating?
isn't he invalidating?
aren't we invalidating?
aren't you invalidating?
aren't they invalidating? 	didn't I invalidate?
didn't you invalidate?
didn't he invalidate?
didn't we invalidate?
didn't you invalidate?
didn't they invalidate? 	wasn't I invalidating?
weren't you invalidating?
wasn't he invalidating?
weren't we invalidating?
weren't you invalidating?
weren't they invalidating? 	
Present perfect 	Present perfect continuous 	Pluperfect 	Pluperfect continuous 	
haven't I invalidated?
haven't you invalidated?
hasn't he invalidated?
haven't we invalidated?
haven't you invalidated?
haven't they invalidated? 	haven't I been invalidating?
haven't you been invalidating?
hasn't he been invalidating?
haven't we been invalidating?
haven't you been invalidating?
haven't they been invalidating? 	hadn't I invalidated?
hadn't you invalidated?
hadn't he invalidated?
hadn't we invalidated?
hadn't you invalidated?
hadn't they invalidated? 	hadn't I been invalidating?
hadn't you been invalidating?
hadn't he been invalidating?
hadn't we been invalidating?
hadn't you been invalidating?
hadn't they been invalidating? 	
Future 	Future continuous 	Future perfect 	Future perfect continuous 	
won't I invalidate?
won't you invalidate?
won't he invalidate?
won't we invalidate?
won't you invalidate?
won't they invalidate? 	won't I be invalidating?
won't you be invalidating?
won't he be invalidating?
won't we be invalidating?
won't you be invalidating?
won't they be invalidating? 	won't I have invalidated?
won't you have invalidated?
won't he have invalidated?
won't we have invalidated?
won't you have invalidated?
won't they have invalidated? 	won't I have been invalidating?
won't you have been invalidating?
won't he have been invalidating?
won't we have been invalidating?
won't you have been invalidating?
won't they have been invalidating? 	

Conditional 	
Present 	Present continuous 	Past 	Past continuous 	
wouldn't I invalidate?
wouldn't you invalidate?
wouldn't he invalidate?
wouldn't we invalidate?
wouldn't you invalidate?
wouldn't they invalidate? 	wouldn't I be invalidating?
wouldn't you be invalidating?
wouldn't he be invalidating?
wouldn't we be invalidating?
wouldn't you be invalidating?
wouldn't they be invalidating? 	wouldn't I have invalidated?
wouldn't you have invalidated?
wouldn't he have invalidated?
wouldn't we have invalidated?
wouldn't you have invalidated?
wouldn't they have invalidated? 	wouldn't I have been invalidating?
wouldn't you have been invalidating?
wouldn't he have been invalidating?
wouldn't we have been invalidating?
wouldn't you have been invalidating?
wouldn't they have been invalidating? 	

Infinitive 	
Imperative 	
Infinitive 	 	Imperative 	 	
to invalidate 	 	-
-
- 	 	

Participle 	
Present 	Past 	 	 	
invalidating	invalidated